Power supply



FIG. 1 is a top perspective view of a power supply showing my new design.

FIG. 2 is a bottom perspective view thereof.

FIG. 3 is a left side elevational view thereof.

FIG. 4 is a right side elevational view thereof.

FIG. 5 is a front side elevational view thereof.

FIG. 6 is a rear side elevational view thereof.

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines in the drawings are for the purpose of illustrating portions of the power supply that form no part of the claimed design. 

CLAIM The ornamental design for the power supply, as shown and described. 